High-performance butler matrices that cover frequency bands, from 0.5 GHz to 8 GHz.

Helping our customers deliver on-time and on budget.

You’ll find our Butler Matrices used in test labs of the world's leading technology companies.


5G and Wi-Fi 6E represent the biggest opportunity in a generation. Spectrum Control’s Butler Matrices will help bring your device to market on time and on budget. And delivering best in-class performance.

A butler matrix simulates a beamforming network to mission-proof the roll-out of Wi-Fi devices and services. Spectrum Control’s line of Butler Matrices supports the latest 5G and Wi-Fi 6E standards, MIMO testing, wireless link simulation, and antenna beamforming. That’s why you’ll find our Butler Matrices used in the test labs of the world's leading technology companies, and most innovative start-ups Fully supported by our Weinschel brand, known for generations for quality, reliability, and support.


5G and Wi-Fi 6 are driving the industries greatest-ever growth opportunity:

  • Streaming videos
  • Autonomous vehicles
  • Private networks
  • A world of connected sensors

Be ahead of your competition. Test your newest router, smart device, chip set, or wireless links using Spectrum Control’s butler matrices.

Make your testing rapid, accurate, and automated. Using Spectrum Control’s Butler Matrix means you deliver the very best customer experience while meeting stringent Wi-Fi and 5G performance requirements:

  • Wi-Fi 6 and Wi-Fi 6E
  • 4G/5G LTE testing and link simulation
  • MIMO testing
  • Antenna array beamforming
  • WiMAX
  • Interferometer system simulation and testing

Customer Success

Our line of butler matrices each feature:

  • Broad operating frequency range
  • Compact design and construction
  • Custom frequency ranges and configurations

For today’s Massive MIMO test applications, the butler matrix is used as a multi-input combining network, introducing phase shifts and delays of the input signals, and simulating real life propagation delays at the outputs. You can also use our Butler Matrix for fast prototyping of network infrastructure and devices. For MIMO antenna arrays. And for testing new wireless network features.

Here’s a recent example. This Wi-Fi chipset maker used our Butler Matrix to simulate real world scenarios between Wi-Fi access points and handsets. They were able to combine and condition multiple signals coming into and out of the access point from multiple devices. The result? Superior chip hardware and improved delivery of firmware updates to their customers. Plus, they were able to replace their costly over the air testing. Saving them time, saving on costs, and helping them to leap the competition.

Our Butler Matrices are also used in Military applications. Including in interferometer antenna arrays for direction finding applications. As well as in targeting and early warning systems.

Explore our line of Butler Matrices


Our 8401-8 Series is a high performance 8x8 butler matrix optimized for the 2.4 to 2.5 GHz and 4.8 to 6.0 GHz frequency bands, while the 8401-8E unit is optimized for the 2.4 to 2.5 GHz and 4.8 to 7.25 GHz frequency bands.






Our 8401 series is a high performance 4x4 Butler matrix covering several frequency bands from 500 MHz up to 8GHz. The unit has very stable, repeatable performance.

RF Switch

10 MHz - 8 GHz. Ideal for Automated Test Equipment (ATE), 2G/3G/4G LTE/5G, MIMO, WiMAX, WiFi, engineering/production test lab environments.

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multichannel programmable attenuator


Multi-Channel Programmable Attenuator Systems

For bench test and ATE applications. In half rack and full rack form factor. Supports up to 16 attenuation channels. Allows for multiple attenuator channels to be controlled across a variety of interfaces, or via a front panel. Control software is included.

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About Spectrum Control

Spectrum Control Weinschel brand Butler Matrices and Programmable Attenuators provide variations in signal level, amplitude and timing between the End User Equipment and Access Points. Together, they enable realistic testing and simulation for Wi-Fi chipsets, routers, RF links, 5G smartphones, and IoT sensors. We also provide custom, engineered-to-order test solutions enhancing your testing in a representative, conducted environment.